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<td ><a href="../qtdoc/index.html">Qt 5.12</a></td><td ><a href="qtquick-index.html">Qt Quick 模块</a></td><td ><a href="qtquick-qmlmodule.html">QML类型</a></td><td >font QML Basic Type</td></tr></table><table class="buildversion"><tr>
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<h1 class="title">font QML Basic Type</h1>
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<p>a font value with the properties of <a href="../qtgui/qfont.html">QFont</a>. <a name="fontbasictypedocs"></a> The <code>font</code> type refers to a font value with the properties of <a href="../qtgui/qfont.html">QFont</a>.</p>
<p>The most commonly used properties are:</p>
<ul>
<li><a href="../qtqml/qml-string.html">string</a> <code>font.family</code></li>
<li><a href="../qtqml/qml-bool.html">bool</a> <code>font.bold</code></li>
<li><a href="../qtqml/qml-bool.html">bool</a> <code>font.italic</code></li>
<li><a href="../qtqml/qml-bool.html">bool</a> <code>font.underline</code></li>
<li><a href="../qtqml/qml-real.html">real</a> <code>font.pointSize</code></li>
<li><a href="../qtqml/qml-int.html">int</a> <code>font.pixelSize</code></li>
</ul>
<p>If both <code>pointSize</code> and a <code>pixelSize</code> are specified, <code>pixelSize</code> will be used.</p>
<p>The following properties are also available:</p>
<ul>
<li><a href="../qtqml/qml-enumeration.html">enumeration</a> <code>font.weight</code></li>
<li><a href="../qtqml/qml-bool.html">bool</a> <code>font.overline</code></li>
<li><a href="../qtqml/qml-bool.html">bool</a> <code>font.strikeout</code></li>
<li><a href="../qtqml/qml-enumeration.html">enumeration</a> <code>font.capitalization</code></li>
<li><a href="../qtqml/qml-real.html">real</a> <code>font.letterSpacing</code></li>
<li><a href="../qtqml/qml-real.html">real</a> <code>font.wordSpacing</code></li>
<li><a href="../qtqml/qml-bool.html">bool</a> <code>font.kerning</code></li>
<li><a href="../qtqml/qml-bool.html">bool</a> <code>font.preferShaping</code></li>
<li><a href="../qtqml/qml-enumeration.html">enumeration</a> <code>font.hintingPreference</code></li>
</ul>
<p>Example:</p>
<pre class="qml">

  <span class="type"><a href="qml-qtquick-text.html">Text</a></span> { <span class="name">font</span>.family: <span class="string">&quot;Helvetica&quot;</span>; <span class="name">font</span>.pointSize: <span class="number">13</span>; <span class="name">font</span>.bold: <span class="number">true</span> }

</pre>
<p>When integrating with C++, note that any <a href="../qtgui/qfont.html">QFont</a> value <a href="../qtqml/qtqml-cppintegration-data.html">passed into QML from C++</a> is automatically converted into a <code>font</code> value, and vice-versa.</p>
<p>This basic type is provided by the <a href="qtquick-module.html">QtQuick</a> import.</p>
<p>Font weighting is classified on a scale from 0 to 99, where a weight of 0 is ultralight, and 99 is extremely black. The following values are supported:</p>
<div class="table"><table class="generic">
 <tr valign="top" class="odd"><td ><code>Font.Thin</code></td><td >0</td></tr>
<tr valign="top" class="even"><td ><code>Font.ExtraLight</code></td><td >12</td></tr>
<tr valign="top" class="odd"><td ><code>Font.Light</code></td><td >25</td></tr>
<tr valign="top" class="even"><td ><code>Font.Normal</code></td><td >50</td></tr>
<tr valign="top" class="odd"><td ><code>Font.Medium</code></td><td >57</td></tr>
<tr valign="top" class="even"><td ><code>Font.DemiBold</code></td><td >63</td></tr>
<tr valign="top" class="odd"><td ><code>Font.Bold</code></td><td >75</td></tr>
<tr valign="top" class="even"><td ><code>Font.ExtraBold</code></td><td >81</td></tr>
<tr valign="top" class="odd"><td ><code>Font.Black</code></td><td >87</td></tr>
</table></div>
<p>Capitalization supports the following values:</p>
<div class="table"><table class="generic">
 <tr valign="top" class="odd"><td ><code>Font.MixedCase</code></td><td >No capitalization change is applied.</td></tr>
<tr valign="top" class="even"><td ><code>Font.AllUppercase</code></td><td >Alters the text to be rendered in all uppercase type.</td></tr>
<tr valign="top" class="odd"><td ><code>Font.AllLowercase</code></td><td >Alters the text to be rendered in all lowercase type.</td></tr>
<tr valign="top" class="even"><td ><code>Font.SmallCaps</code></td><td >Alters the text to be rendered in small-caps type.</td></tr>
<tr valign="top" class="odd"><td ><code>Font.Capitalize</code></td><td >Alters the text to be rendered with the first character of each word as an uppercase character.</td></tr>
</table></div>
<p>Setting the hinting preference only has an effect when using the &quot;NativeRendering&quot; render type. The property supports the following values:</p>
</td></tr>
<p>Font.PreferDefaultHinting - Use the default hinting level for the target platform.</p>
</td></tr>
<p>Font.PreferNoHinting - If possible, render text without hinting the outlines of the glyphs.</p>
</td></tr>
<p>Font.PreferVerticalHinting - If possible, render text with no horizontal hinting, but align glyphs to the pixel grid in the vertical direction.</p>
</td></tr>
<p>Font.PreferFullHinting - If possible, render text with hinting in both horizontal and vertical directions.</p>
</div>
<p><b>请参考 </b><a href="../qtqml/qtqml-typesystem-basictypes.html">QML Basic Types</a>。</p>
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